The Ring,wearing, cataloged under National Stock Number 4320-00-218-3338, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-218-3338 |
| Primary Part Number | 174974A |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES LEFT FACE |
| Surface Finish | 125.0 MICROINCHES INSIDE |
| Surface Finish | 125.0 MICROINCHES OUTSIDE |
| Material | COPPER ALLOY |
| Corner Shape | SQUARE ALL CORNERS |
| Surface Finish | 125.0 MICROINCHES RIGHT FACE |
| Body Style | PLAIN |
| Bolt Circle Diameter | 4.312 INCHES NOMINAL IN |
| Body Outside Diameter | 4.933 INCHES MINIMUM AND 4.935 INCHES MAXIMUM IN |
| Body Inside Diameter | 3.657 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.281 INCHES NOMINAL IN |
| Bolt Hole Quantity | 6 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 174974A PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 4142P | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 4142P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| SL4143PC30 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| SL4143PC30 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 174974A | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
NSN 4320-00-218-3338 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-00-218-3338 has 6 cross-referenced part numbers: 174974A (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 4142P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 4142P (Curtiss-Wright Electro-Mechanical Corporation Div Epd), SL4143PC30 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL4143PC30 (Curtiss-Wright Electro-Mechanical Corporation Div Epd) and 1 more.
There is 1 known substitute for 4320-00-218-3338: 6250-01-348-6557. Verify interchangeability with system specifications before substitution.
Key specifications for 174974A: Special Features: MTG HOLES COUNTERBORED 0.438 IN. DIA AND 0.250 IN. DEEP IN; Surface Finish: 125.0 MICROINCHES LEFT FACE; Surface Finish: 125.0 MICROINCHES INSIDE; Surface Finish: 125.0 MICROINCHES OUTSIDE. 14 total characteristics are documented in the Federal Logistics Information System.